The time-rate at which a body changes its position; defined as displacement divided by the time of travel.
What is Velocity?
100
The smallest unit of a chemical element that can still retain the properties of that element.
What is an Atom?
100
The energy possessed by a body because of its motion.
What is Kinetic energy?
100
A solid, liquid, or gas that possesses inertia and is capable of occupying space.
What is Matter?
100
The event, condition, or factor that can be changed or controlled in order to study or test a hypothesis in a scientific experiment.
What is a Variable?
200
The Amount of distance traveled divided by time taken; the time-rate at which any physical process takes place.
What is Speed?
200
Subatomic particle having zero charge, found in the nucleus of an atom.
What is a Neutron?
200
Energy stored in an object due to the object's configuration and position.
What is Potential energy?
200
The amount of matter an object contains.
What is Mass?
200
The factor that is changed in an experiment in order to study changes in the dependent variable.
What is an Independent variable?
300
A force that opposes the relative motion of two material surfaces in contact with one another.
What is Friction?
300
A subatomic particle having a positive charge and which is found in the nucleus of an atom.
What is a Proton?
300
Both Potential - and Kinetic Energy.
What is Mechanical Energy?
300
Concentration of matter of an object; number of individuals in the same species that live in a given area; the mass per unit volume of a substance in a given area.
What is Density?
300
A factor being measured or observed in an experiment.
What is A Dependent Variable?
400
The observed effect of the force of gravitation.
What is Gravity?
400
A stable elementary particle that is negatively charged and orbits the nucleus of an atom.
What is an Electron?
400
Internal energy found by adding the kinetic energy of particles making up a substance.
What is Thermal energy?
400
A measure of the amount of space an object takes up; also the loudness of a sound or signal.
What is a Volume?
400
A procedure that is carried out in order to observe a response caused by a stimulus; not a complete experiment.
What is an Investigation?
500
The rate of change in velocity, usually expressed in meters per second; involves an increase or decrease in speed and/or a change in direction.
What is Acceleration?
500
A substance that cannot be reduced to a simpler substance by chemical means.
What is an element?
500
A quantity that describes the capacity to do work; a source of usable power.
What is Energy?
500
A repetitive movement around an equilibrium point?
What is Vibration?
500
A procedure that is carried out and repeated under controlled conditions in order to discover, demonstrate, or test a hypothesis; includes all components of the scientific method.